JP4578335B2 - Absorbent package - Google Patents

Description

  The present invention relates to an individual package of absorbent articles when individually packaging absorbent articles such as sanitary napkins and panty liners.

  Absorbent articles such as sanitary napkins and panty liners are bonded to the release treatment layer of the packaging material via a non-slipping adhesive layer disposed on the non-skin contact surface, and further the absorbent article and the packaging It is known that both side edges of the packaging material are sealed and packaged with the material folded together (for example, see Patent Document 1 below).

  By the way, when the absorbent article packaged in this way is peeled off the packaging material to expose the adhesive layer for preventing slippage, the adhesive layers are stuck to each other, and then the absorbent article is attached. There was a case where it interfered with. In particular, when the thin absorbent article is peeled off at once, the adhesive layer is easily stuck and bent due to the reaction. And when peeling off adhesion layers, it often touches the skin contact surface of an absorbent article, and it was not hygienic.

JP 7-88129 A

  The present invention has been made in view of the above problems, and when unpacking and taking out an absorbent article, the packaging material and the absorbent article can be peeled off without hindrance, such as underwear of the absorbent article. An object of the present invention is to provide an individual package of an absorbent article that is excellent in wearability and can be used hygienically.

  The present invention relates to an absorbent article in which an absorbent article having an adhesive layer for preventing slippage is bonded to a packaging material via the adhesive layer, and is folded together with the packaging material and packaged with the packaging material. A regulating means for temporarily stopping the peeling operation when the absorbent article and the packaging material are peeled off by unwrapping the package, and an end part of the absorbent article and / or Or the said objective is achieved by providing the individual packaging of the absorbent article which has comprised in the area | region of the said packaging material facing this edge part.

  The individual package of the absorbent article of the present invention can peel off the packaging material and the absorbent article without any trouble when unpacking and taking out the absorbent article, and the removed absorbent article is suitable for underwear, etc. And can be used hygienically.

Hereinafter, the present invention will be described based on preferred embodiments with reference to the drawings.
1 and 2, an individual package of the absorbent article according to the present invention (hereinafter also simply referred to as an individual package) is used as a panty liner for a cage (hereinafter also simply referred to as a liner). The applied 1st Embodiment is shown typically.

  As shown in FIG. 1, the individual package 1 of the present embodiment is such that the liner 2 is folded in three with the packaging material 3 and covered with the packaging material 3. The individual package 1 of the present embodiment is provided with a regulating means for temporarily stopping the peeling operation when the liner 2 and the packaging material 3 are peeled off by unwrapping the packaging material. In a region facing the rear end portion (end portion). In this embodiment, the regulation means is, as will be described later, a release treatment sheet of the packaging material 3 and a cutting line or a cutting guide wire provided therebetween, an adhesive layer 4, and an adhesive 6 that fixes the release treatment sheet. Composed. In the present embodiment, the peeling direction refers to a direction R along the longitudinal direction of the packaging material 3 from the start end portion 3A to the termination portion 3B of the packaging material 3 as shown in FIG.

  Generally, the liner 2 is peeled off after the three-fold individual package is unwound from the case where the user folds the uppermost part in FIG. 1 (starting end portion 3A in FIG. 2). There is a case where it is from the overlapped region (terminal portion 3B in FIG. 2), but in this embodiment, peeling is performed toward the rear end portion (end portion) which is a region including the restricting means. To do. The individual packaging 1 can be provided with an arrow, a cautionary note, and the like for guiding the user to peel off in this direction.

  As shown in FIG. 2, the liner 2 includes a skin contact surface 21 and a non-skin contact surface 22 and is formed substantially vertically long. The non-skin contact surface 22 of the liner 2 is provided with an adhesive layer 4 (4A, 4B) for preventing slippage. As the constituent material of the liner 2 and the material of the adhesive layer 4, known materials conventionally used for liners are employed. The skin contact surface 21 is composed of a liquid-permeable top sheet, and the non-skin contact surface 22 is composed of a liquid-impermeable back sheet. A non-woven fabric or a perforated film is used for the top sheet, and a film sheet, a breathable film sheet, a water-repellent non-woven fabric, or the like is used for the back sheet. Between the top sheet and the back sheet, as the absorbent, a nonwoven fabric or paper, or a combination of pulp and superabsorbent polymer may be used, and when the top sheet is composed of a nonwoven fabric with high liquid retention, The absorber may not be used as a separate member.

  The packaging material 3 has a larger area than the liner 2 and is formed in a vertically long shape. The packaging material 3 is composed of a packaging sheet (individual packaging material) 31 and two release treatment sheets (peeling means) A and B fixed to the inner surface thereof with an adhesive (adhesive means) 6 (6A1, 6A2, 6B). Thus, the pressure-sensitive adhesive layer 4 of the liner 2 and the packaging material 3 can be peeled by the release treatment sheet. In the present embodiment, the outer shape of the release treatment sheet is substantially matched with the outer shape of the liner 2. The two release treatment sheets A and B are arranged in the peeling direction with a gap of 0 to 2 mm, and are provided so that the gap intersects the peeling direction. In the present embodiment, this gap is also referred to as a cutting line 50 for convenience. The release treatment sheet A is fixed to the near side position when the individual package is opened, and the release treatment sheet B is fixed to the back side position. That is, when the liner is taken out in accordance with the peeling direction R, the release treatment sheet A is peeled off first, and the release treatment sheet B is peeled off later.

  The fixing of the packaging sheet 31 and the release treatment sheets A and B will be described. As described above, the packaging sheet 31 and the release treatment sheets A and B are fixed by the adhesive 6, and the adhesive 6 is applied in a predetermined pattern on the non-release treatment surface of the release treatment sheet on the packaging sheet side. It is crafted. At this time, the adhesive 6 </ b> B that fixes the packaging sheet 31 and the release treatment sheet B preferably has a gap from the cutting line 50 in the peeling direction R. In addition, at the starting end 3A where the peeling is started, the adhesive layer 4A is positioned on the terminal portion 3B side of the packaging material 3 in the peeling direction from the adhesive 6A1 for fixing the release treatment sheet A to the packaging sheet 31. It is preferable that the liner 2 can be peeled off smoothly after the individual package 1 is opened. In this case, the pressure-sensitive adhesive layer 4A is closer to the end portion 3B of the packaging material 3 than the adhesive 6A1. In the area of the release treatment sheet B, when the adhesive 6B is located in the same position with respect to the peeling direction R with respect to the pressure-sensitive adhesive layer 4B or on the terminal portion 3B side of the packaging material 3, the adhesive (for peeling) is prevented. Peeling from the treatment sheet) is preferable because it is once caught and stopped. In this case, the pressure-sensitive adhesive layer 4B is closer to the front side than the adhesive 6B, and in this relationship, the adhesive layer 4B is caught and does not peel off smoothly. In order to prevent a peeling trouble such as the peeling treatment sheet B being peeled off from the packaging sheet 31 or the peeling treatment sheet B being torn and causing an appropriate temporary stop, the starting end of the adhesive layer 4B in the peeling direction of the adhesive 6B is better. It is preferable to be positioned from the start end portion 3A about 0 mm to 3 mm, preferably about 0.5 mm to 2 mm from the start end in the peeling direction (see symbol d in FIG. 2). The adhesive 6 is preferably wider than the pressure-sensitive adhesive layer 4 in the width direction.

In the present embodiment, the cutting line 50 is provided so as to intersect the peeling direction. That is, the cutting line 50 is provided so as to cross the longitudinal direction of the peeling means, and the peeling operation of the liner 2 and the packaging material 3 is temporarily stopped with the cutting line 50 as a boundary. Specifically, when the pressure-sensitive adhesive layer 4 of the liner 2 is peeled off from the release treatment sheet of the packaging material 3, the release treatment sheet A ends, and when the cut portion 50 is exceeded, the release treatment sheet B is not peeled off. The peeling operation stops.
It should be noted that depending on the front-rear relationship between the application position of the adhesive 6B and the application position of the adhesive layer 4B for preventing slippage, the adhesive is smoothly peeled off or the peeling is stopped from the fixed end of the release treatment sheet. This is because the way (direction) of the force applied to is changed. Specifically, when the start end of the peeling direction of the adhesive layer 4B for preventing slippage is located on the start end side 3A side of the packaging material 3 from the start end of the peeling direction of the adhesive 6B for fixing the release treatment sheet B, The liner peel becomes very heavy. This is because the action point at which the peeling treatment sheet B is peeled off by the peeling operation is the starting end of the peeling direction of the adhesive 6B that fixes the peeling treatment sheet B, and the peeling direction of the adhesive layer 4B for preventing misalignment. Force is applied in a shearing direction opposite to the pulling direction (in other words, for the front side of the peeling direction of the adhesive 6B that fixes the release treatment sheet B) And a force in the direction opposite to the direction of peeling is generated), so that it becomes very heavy. On the other hand, when the starting end of the peeling prevention adhesive layer 4B in the peeling direction is located closer to the terminal portion 3B side of the packaging material 3 than the starting end of the peeling direction of the adhesive 6B for fixing the release treatment sheet B, The direction coincides with the peeling direction (that is, the reverse force is not generated), and the direction is smoothly peeled off.

  Therefore, the individual package 1 according to the present embodiment includes a restricting unit that temporarily stops the peeling operation at a position facing the adhesive layer 4 of the liner 2 on the packaging material 3 side facing the end of the liner 2. is doing. It should be noted that the temporary stop is canceled when the pulling is continued with a stronger force, and the liner 2 and the packaging material 3 are completely peeled off. As will be described later, the position at which the peeling operation is stopped is set in consideration of bending when the packaging material 3 is peeled off, ease of peeling, and the like.

  The length L50 (see FIG. 2) of the cutting line 50 between the release treatment sheets A and B from the end portion of the liner 2 is considered when bending or peeling operation is stopped when the packaging material 3 is peeled off. It is preferably provided at a position of 5 to 50% of the longitudinal length L5 of the liner 2 and particularly preferably provided at 10 to 30%. From the viewpoint of stopping the peeling operation, it is preferable that the cutting line 50 is not located in the center area of the tri-fold when the liner 2 and the packaging material 3 are folded in three to form an individual package. By providing a cutting line at such a position, when the packaging material 3 is peeled off, as shown in FIG. 3, the packaging material 3 is easily bent by 180 degrees along the cutting line, and the exposed adhesive layer 4 is removed. It becomes easy to put on underwear.

As shown in FIG. 1, the adhesive layer 4 is applied in a continuous thin film shape in the application region.
As the pressure-sensitive adhesive for the pressure-sensitive adhesive layer 4, known ones conventionally used for this type of individual package can be used. Examples of the pressure-sensitive adhesive include SBS, SIS, and SEBS hot melt pressure-sensitive adhesives.

The individual package 1 of this embodiment is manufactured as follows.
First, an adhesive is applied to a required portion while slitting the original sheet of the release treatment sheet unwound from the roll state in the longitudinal direction, and the back sheet side of the liner original is overlapped thereon. Next, the release treatment sheet and the liner are integrally cut into a predetermined shape, and the release treatment sheet is placed on a long packaging sheet having an adhesive applied to a required location. The plurality of liners 2 are fixed at intervals. At this time, the longitudinal direction of the liner 2 is a direction that intersects the flow direction of the packaging sheet 31. Next, the packaging sheet 31 and the liner 2 are integrally folded in three so that the longitudinal direction of the liner 2 is divided into three, and the packaging sheets 21 on both sides of the folded liner 2 are heat-sealed with a predetermined width, Separated within the width of the seal portion, an individual package is obtained.

  Here, you may use the peeling process sheet to be used without slitting two sheets originally. Furthermore, you may select the peeling process sheet B so that peeling may become heavier than the peeling process sheet A. FIG. In this case, regardless of the fixing method of the release treatment sheet, if the liner is peeled in the R direction from the near side, the release is relatively heavy at the place where it is applied to the release treatment sheet B, so that it temporarily stops. In particular, when the two release treatment sheets are arranged apart from each other, “peeling of the release treatment sheet A (light) —between each release treatment sheet (no resistance at all) —peeling of the release treatment sheet B ( Heavy) ”, the liner peeling sensation changes remarkably, and in addition to the physical means for regulating the peeling described above, the peeling operation also tends to stop temporarily. When the release treatment sheets are separated from each other, the difference in release force (T-release force) from the liner is preferably 25 to 200 cN, and more preferably 40 to 100 cN. At this time, the peel strength of the release treatment sheet A is preferably 100 cN or less, particularly preferably 10 cN to 75 cN, and the peel strength of the release treatment sheet B is preferably 50 to 300 cN, particularly preferably 60 to 200 cN. Here, the heavy peeling means that the force required for heavy peeling is large, and light means that it is small.

  Also, as another form, a form in which the two release treatment sheets A and B are arranged adjacent to each other without leaving a gap, or a region from the end portion in the peeling direction of one release treatment sheet is peeled off. The form which makes it heavy is mentioned. In the case where the release treatment sheets are not separated, the difference in the release force is preferably 100 cN or more in the adjustment of the release property from the viewpoint of stopping the peeling operation. At this time, the light side immediately before the peeling direction is preferably 100 cN or less, particularly preferably 10 cN to 75 cN. On the other hand, the heavy side at the back in the peeling direction is preferably 100 cN or more, particularly 100 to 500 cN, and more preferably 120 to 300 cN.

As the material of the packaging sheet 31 and the material of the release treatment sheet, known materials conventionally used for liner packaging are employed. As the packaging sheet, various synthetic resin films of about 10 to 50 μm (for example, any material known to those skilled in the art can be used, but various polyethylenes are particularly good), paper having a basis weight of about 12 to 40 g / m ² or various types. Nonwoven fabrics and composite materials laminated with a synthetic resin such as polyethylene may be mentioned. Nonwoven fabrics, particularly spunbonded nonwoven fabrics such as polyethylene and polypropylene, or “spunbond-meltblown-spunbond (SMS)” are used because of cost and feel. Nonwoven fabrics such as “composite nonwoven fabric” are particularly preferably used. As the release treatment sheet, a normal release paper or release film can be used without particular limitation. Considering the cost and the difficulty of tearing at the time of peeling, it is preferable to use a release paper obtained by subjecting a paper having a basis weight of 30 to 50 g / m ^{2 to} a release treatment with a silicone release agent. As an adhesive for fixing the packaging sheet 31 and the release treatment sheet, an adhesive conventionally used for fixing this type of sheet can also be used. Preferred examples of the adhesive include hot melt adhesives, particularly SBS, SIS, SEBS, and olefinic hot melt pressure-sensitive adhesives.

  When the liner 2 is used after unwrapping the individual package 1 described above, the three-fold state is taken so that the start end portion 3A of the packaging material 3 is picked from the state of FIG. The liner 2 and the packaging material 3 are developed. And as shown in FIG. 3, it has the longitudinal direction front-end | tip part (end part by the side of the start end part 3A of the packaging material 3) of the liner 2, and peels off the packaging material 3 from the start end part 3A along a peeling direction, and the liner 2 And the packaging material 3 are separated. At this time, the liner is smoothly peeled up to the release treatment sheet A by the device as described above. Further, when the peeling position exceeds the cutting line 50 and reaches the peeling treatment sheet B, as described above, the peeling operation is temporarily stopped, and the packaging material 3 can be prevented from being peeled off at once. At this time, the user grips the longitudinal end portion of the liner 2 with one hand and the starting end portion 3A of the packaging material 3 with the other hand, and the packaging material 3 is bent nearly 180 degrees as described above. Therefore, the exposed adhesive layers 4 are not attached to each other, and are not attached to the hand and entangled with each other, and the adhesive layer 4 can be easily placed on the underwear as it is. After the liner 2 is placed and fixed on the underwear, the packaging material 3 is further peeled off from the liner 2 to expose the adhesive layer 4 (4B) covered with the release treatment sheet B, and this portion is fixed to the underwear. . In this way, it is possible to effectively prevent the sticking phenomenon between the adhesive layers that often occurs when the packaging material 3 is peeled off from the small and thin liner 2 at a stretch. By having the end portion in this way, the skin contact surface is not touched unnecessarily and can be mounted in a sanitary manner. Further, when the peeling operation is temporarily stopped, since the front end portion 3A of the liner 2 and the start end portion 3A of the packaging material 3 are held, even a liner having a short length is attached to the underwear. Property is improved.

Thus, since the individual package 1 of this embodiment is provided with the restricting means in the region of the packaging material 3 facing the end portion of the liner 2, The peeling operation when the packaging material 3 is peeled off is temporarily stopped. Therefore, the packaging material 3 and the liner 2 can be peeled off without hindrance, and the taken-out liner 2 can be suitably attached to underwear or the like.
Further, since the individual package 1 of the present embodiment includes the restricting means at a position facing the adhesive layer 4 on the packaging material 3 side, the peeling operation is temporarily stopped (that is, restricted). ) Since the liner is not peeled off at once, sticking between the liner fixing adhesive layers can be effectively prevented.
Moreover, the individual package 1 of this embodiment has the peeling means with respect to the adhesion layer 4, and the joining means which fixes this peeling process sheet to the packaging sheet 31, as above-mentioned, and the peeling material 3 has this peeling process. Since the sheet has a cutting line in a region facing the adhesive layer 4 and the joining means is formed on a side of the cutting line and does not cross the cutting line, the liner 2 is formed. When peeling from the packaging material 3, the peeling operation can be temporarily stopped (that is, the peeling operation is restricted).
Moreover, since the cutting line 50 is provided so that the cutting line 50 may cross the longitudinal direction of a peeling process sheet, when the liner is peeled off in the longitudinal direction, the individual package 1 of this embodiment is the cutting line part. This means that the peeling operation is temporarily stopped because the means for restricting the peeling operation is surely applied.

  Next, second to sixth embodiments of the present invention will be described. In the description of these embodiments, the description of points common to the individual package of the first embodiment will be omitted. Therefore, the description in the first embodiment is appropriately applied to a portion that is not particularly described.

First, a second embodiment of the present invention will be described.
In the first embodiment described above, two release treatment sheets are used. However, the individual package of the present embodiment uses one release treatment sheet and is provided with a cutting guide line (so-called cut line). is there. Hereinafter, for the sake of convenience, description will be given with reference to FIGS.

  The individual package of the present embodiment has the same configuration as the individual package of the first embodiment except that the cutting line 50 in the individual package of the first embodiment described above is changed to the cutting guide line 50 ′. ing. The cutting guide wire 50 'has a small area that is not partially cut, and this area is cut by peeling the liner 2 and one release treatment sheet is divided into two. The When the peeling of the liner 2 is divided into two, the peeling operation is temporarily stopped as in the case of the cutting line described above.

  As in the first embodiment, the individual package of the second embodiment includes the peeling restricting means in the region of the packaging material 3 facing the end of the liner 2. When the packaging is released and the liner 2 and the packaging material 3 are peeled off, the peeling operation is temporarily stopped. Therefore, the packaging material 3 and the liner 2 can be peeled off without hindrance, and the taken-out liner 2 can be suitably attached to underwear or the like. In the second embodiment, since there is substantially no gap between the release sheets as compared to the embodiment in which the cut portions are separated as in the first embodiment, it is possible to apply the adhesive layer more widely.

Next, a third embodiment of the present invention will be described.
As shown in FIG. 4, the individual package according to the present embodiment is obtained by partially superimposing two sheets of release treatment sheets A and B and fixing them to a packaging sheet (individual packaging material) 31 with an adhesive. The individual package of the present embodiment forms an overlap at the position of the cutting line 50 in the individual package of the first embodiment. In the individual package of the present embodiment, the position of the adhesive that fixes the adhesive layer 4 and the release treatment sheet is changed depending on how the release treatment sheets A and B overlap.

  When the release treatment sheet A is overlapped on the release treatment sheet B as in the individual package of the present embodiment, the starting end of the peeling direction of the adhesive 6B that fixes the release treatment sheet B is between the release treatment sheets. The peeling end of the adhesive layer 4B facing the release processing sheet B is set to the back side without being placed in the overlapping area of the adhesive 6B, and the peeling direction of the adhesive 6B for fixing the release processing sheet B is set. The position is set to the start end portion 3A side of the packaging material 3 from the start end of. If the above is satisfied, the pressure-sensitive adhesive layer 4 may cover the overlapping region between the release treatment sheets A and B, and the pressure-sensitive adhesive layer 4 forms one continuous region along the longitudinal direction of the liner 2. Also good. Here, “upper” in the case where the release treatment sheets are overlapped means the liner 2 side.

  When the coating region of the adhesive layer 4 is a discontinuous pattern as in the individual package of the present embodiment, the start end of the peeling-off adhesive layer 4B on the release treatment sheet B in the peeling direction, and the release treatment The positional relationship (distance d) of the adhesive 6B for fixing the sheet B with the starting end in the peeling direction is substantially the same at both ends, or the starting end of the adhesive layer 4B in the peeling direction is the position of the adhesive 6B. It is preferably on the side of the starting end 3A of the packaging material 3 relative to the starting end in the peeling direction, and the range is more preferably within 2 mm.

  When the coating region of the adhesive layer 4 is coated in a continuous pattern, the overlapping length of the release treatment sheets A and B is preferably as small as possible. In order to smoothly take out the liner 2, the overlap is desirably within 2 mm, and the starting end in the peeling direction of the adhesive 6 </ b> B that fixes the release treatment sheet B at this time is located adjacent to the overlap (approximately 0 mm). It is desirable.

  When the release treatment sheet B is overlapped on the release treatment sheet A, the coating pattern of the adhesive layer 4 or the application position of the adhesive 6 is adjusted. For example, the start end of the peeling direction of the adhesive 6B for fixing the release treatment sheet B does not reach the overlapping region between the release treatment sheets, and the position is set on the end portion 3B side of the packaging material 3 than that. It is the same as that of the form of FIG.

  According to the individual package of the third embodiment, the regulation means is provided in the region of the packaging material 3 facing the end of the liner 2, as in the first embodiment. The peeling operation at the time when the liner 2 and the packaging material 3 are peeled off is temporarily stopped. Therefore, the packaging material 3 and the liner 2 can be peeled off without hindrance, and the removed liner 2 can be suitably attached to underwear or the like. According to this embodiment, it is possible to continuously apply the adhesive for preventing slippage, which is advantageous from the viewpoint of preventing slippage.

Next, an individual package according to a fourth embodiment of the present invention will be described.
As shown in FIG. 5, the individual package of the fourth embodiment is a form that does not include a release treatment sheet, and the packaging material 3 is subjected to a peeling treatment on the inner surface of the packaging sheet (individual packaging material) 31. , And a cutting line (or cutting guide line) 50 ′ is put in the release treatment layer 32 so as to cross the liner at a predetermined position, which serves as the peeling restricting means. The cutting line (or cutting guide line) is a bending guide line when the liner 2 is peeled off. The predetermined position here is the same as the cutting line in the first embodiment described above. The packaging material 3 uses the same material as that of the packaging sheet 31 described above, and the entire surface of the packaging sheet 31 is subjected to a peeling treatment on the opposite surface of the liner 2. The cutting line (or cutting guide line) is preferably equal to or wider than the width of the liner at the corresponding position in terms of ease of folding.

  When the individual package of the sixth embodiment is used, when the liner 2 is peeled off in the peeling direction (R), the packaging material is greatly opened by the bending guide wire, and the packaging material 3 is close to 180 degrees. It will be bent and peeling will pause. The bending guide line is formed by a cut line having a width wider than that of the liner and not completely crossing the packaging material, and is sufficiently long to significantly reduce the rigidity of the packaging material. Make it longer than the width so that the packaging material is not torn off by peeling.

  As described above, in the individual package 1 of the fourth embodiment, the packaging sheet 31 is peeled off, and a cutting line (or a cutting guide line) is formed in a part of the region of the packaging sheet 31 facing the adhesive layer 4. 50 'and the cutting line (or cutting guide line) does not completely divide the packaging sheet, and there is no need to provide a peeling means as a separate member. Therefore, it can be set as the individual packaging with a small number of members and easy to manufacture.

Next, an individual package according to a fifth embodiment of the present invention will be described.
As shown in FIG. 6, in the individual package according to the fifth embodiment, the peeling restricting means is provided in a region other than the region facing the adhesive layer. In the present embodiment, the regulating means is constituted by a joining means 7 that partially fixes the liner 2 and the packaging material 3.
That is, the individual package of the fifth embodiment has a configuration in which the packaging material 3 is fixed to the release processing sheet A and the packaging sheet 31 via an adhesive, and the release processing sheet A is made shorter than the length in the longitudinal direction of the liner 2. The liner 2 and the packaging sheet 31 are point-joined by the joining means 7 on the outer side in the longitudinal direction of the release treatment sheet A and at the end portion in the peeling direction of the liner 2. This joining means 7 is performed by a dot-like heat seal or an adhesive. Alternatively, the adhesive layer 4 may be adhered to the packaging sheet 31. In this case, from the viewpoint of take-out property, the bonding width with the adhesive layer 4 is preferably within 2 mm, and more preferably within 0.5 mm. In addition, you may perform the peeling process 33 partially in the area | region where the peeling process sheet | seat of a packaging sheet is joined, and may perform the point joining with a liner, and joining with the adhesion layer 4 in the location which has not performed peeling process. .
Alternatively, a small hole may be formed in a part of the release treatment sheet (the adhesive-facing surface for preventing slippage), and the packaging sheet may be bonded to the liner with the adhesive in this small hole.

  In this way, the individual package of the fifth embodiment is configured by the joining means 7 in which the regulating means partially fixes the liner and the packaging sheet, and the fixing is spot adhesion by an adhesive or heat. This is done by spot adhesion with a seal. Therefore, the liner can be smoothly peeled off at the release sheet portion, but the peeling operation is temporarily stopped because the liner and the packaging material are strongly bonded to each other at the bonding portion (than the release sheet portion). The fixing point by the adhesive and the heat seal is small, so it can be removed immediately if it is pulled strongly. In this way, the regulation effect can be expressed easily.

Next, an individual package according to a sixth embodiment of the present invention will be described.
As shown in FIG. 7, the individual package according to the sixth embodiment is provided with a peeling restricting means for temporarily stopping the peeling operation regardless of the longitudinal direction of the liner 2. It is. Even in this case, the above-described cutting line with respect to the peeling direction, bonding of the release treatment sheet and the position of the adhesive layer, materials, and the like apply mutatis mutandis unless otherwise specified.

  As shown in FIG. 7, in this embodiment, the packaging material 3 is a release sheet that is divided into three in the longitudinal direction of the liner 2 on the packaging sheet 31 (for convenience, the unsealed side (tab tape side) of the individual package. The release treatment sheets A, B, and C are bonded to each other with adhesives 6A1 to 6C2, and each release treatment sheet is fixed to the packaging sheet 31 with a separation of 0 to 2 mm in the longitudinal direction. . In FIG. 7, the peeling from the tab tape 10 side is defined as the R direction, and the reverse peeling direction is defined as the R ′ direction.

The individual package according to the present embodiment is configured to temporarily stop the operation when the peeling treatment sheet to be peeled off last is peeled off, regardless of the peeling direction R or R ′. Yes. In this form, in any direction, the positional relationship between the adhesive layer that is covered with the release treatment sheet that is finally peeled off and the adhesive that fixes the release treatment sheet and the packaging material with respect to each direction R and R ′. The starting direction of the adhesive in each direction is the same as or in the direction of the adhesive layer in the direction of the adhesive, the R direction being the starting end 3A side of the packaging material, and the R 'direction being the end 3B side. Is preferred.
That is, with respect to the release processing sheet C that is finally peeled off when being peeled in the R direction, the end position of the fixing adhesive 6C1 for the release processing sheet C is more at the start end than the start end in the R direction of the adhesive layer 4C. Position it on the part 3A side. In addition, for the release treatment sheet A that is finally peeled off when being peeled off in the R ′ direction, the end position of the adhesive 6A2 for fixing the release treatment sheet A is more than the starting end of the adhesive layer 4A in the R ′ direction. Is positioned on the start end 3A side. The ends of the adhesives 6B1 and 6B2 for fixing the release treatment sheet B are positioned outside the end of the adhesive layer 4B in the longitudinal direction of the liner 2.

  Thereby, when peeling off in the R direction, the peeling treatment sheets A and B are peeled off smoothly, and the peeling operation is temporarily stopped in the region of the peeling treatment sheet C. Further, when peeled in the R ′ direction, the release treatment sheets C and B are smoothly peeled off, and the peeling operation is temporarily stopped in the region of the release treatment sheet A.

  In this embodiment, since the peeling operation can be stopped regardless of the peeling direction of the individual package, an individual package that is more convenient to use can be obtained.

  It should be noted that, as in the above-described third embodiment, adjacent release treatment sheets may be overlapped, or a single release treatment sheet may be cut by peeling with a cutting guide line as in the second embodiment. By adjusting the positional relationship between the same fixed adhesive and the pressure-sensitive adhesive layer, it is possible to peel off from both directions and temporarily stop. Moreover, it is also possible to make the coating area of the adhesive layer substantially continuous in the longitudinal direction of the liner.

  The following description is appropriately applied to the individual package of the present invention including the above embodiments.

  The application pattern of the fixing adhesive for fixing the release treatment sheet to the packaging sheet can form any pattern as long as the positional relationship in the longitudinal direction of the liner with the adhesive layer shown in each of the above embodiments is satisfied. is there. For example, it is possible to fix all the intermediate areas satisfying the specified front end and rear end positions, or no fixing other than forming a linear fixing pattern in the specified front end area and rear end area. May be.

Among the above-described embodiments, when a packaging material in which a release treatment sheet is fixed to a packaging sheet is used, from the viewpoint of smooth peeling, the fixing adhesion to be fixed to the packaging sheet with respect to the width of the release treatment sheet (width direction of the liner) The width of the agent is preferably 1/2 or more of the release treatment sheet, and particularly preferably 2/3 or more. The relationship with the width of the adhesive layer is not particularly specified. The basis weight of the fixing adhesive for securely fixing the release treatment sheet varies depending on the type of the packaging sheet, but is generally 5 to 50 g / m ² , preferably 7 to 30 g / m ² . Any adhesive known to those skilled in the art can be preferably used as the fixing adhesive, but hot melt adhesives, particularly SBS, SIS, and SEBS hot melt pressure-sensitive adhesives can be suitably used.

  The size of the release treatment sheet can be freely determined as long as it is not contrary to the gist of the present invention. In FIG. 1, a release treatment sheet smaller than the liner is used, but it is also possible to use a release treatment sheet having substantially the same size, width and length as the liner. Further, the release treatment sheet may be larger than the packaging sheet.

  In FIG. 2, the adhesive layer is applied in a continuous thin film shape in the application region, but can be applied in any pattern as long as it is in a positional relationship with the fixed adhesive of the release treatment sheet. For example, when two separated release treatment sheets are used, they can be applied in a linear pattern continuous in the longitudinal direction, a linear pattern continuous in the width direction, a dot shape, a wave shape, a spiral shape, or the like.

  Further, by adjusting the peelability of the release treatment layer of the packaging material and the adhesive strength of the adhesive layer in a partial region, the same effects as those of the first embodiment described above can be exhibited. The release treatment sheet or the release treatment layer of the packaging material subjected to the release treatment is made by designing the release property heavily in the release region in the direction of peeling away from the position where the peeling operation is to be temporarily stopped. . The adhesive force of the adhesive layer used as the slipper is designed by strongly designing the adhesive force of the adhesive layer in the region ahead from the position where the peeling operation is to be temporarily stopped. That is, in this case, the stripping restricting means is formed on the adhesive layer of the liner. In this case, it is the same in simple processing steps compared to all the above embodiments without special measures such as a device such as a cutting line, a cutting guide wire, and a fixing adhesive on the packaging material side. An effect can be expressed.

Among these, the peelability adjustment of the release treatment layer of the release treatment sheet or the release treatment layer of the packaging sheet subjected to the release treatment can be performed as follows.
Examples of methods for adjusting the peelability include changing the coating amount of the silicone resin used for the release treatment, increasing the silicone purity of the silicone resin used for the release treatment, and the like.
For example, in the case where the silicone coating amount of the release treatment sheet A is 4 g / m ² and the release treatment sheet B is 1 g / m ² , the SEBS (styrene-ethylene-butadiene-styrene) hot melt is applied to the adhesive layer 4 of the liner 2. It is possible to obtain a difference in adhesive strength of about 20 cN for the release treatment sheet A and about 120 cN for the release treatment sheet B by applying a thin film of the adhesive 50 g / m ² .

  The peel force is measured using a Tensilon tensile test (Tensilon RTM25 manufactured by Orientec Co., Ltd.) with a chuck distance of 15 mm and a peel speed of 300 mm / min. First, open the seal of the individual package, open the liner, spread the liner, and then peel off the packaging material. Use the upper chuck for the packaging material (packaging sheet and release sheet) and the lower chuck for the liner. A T peel test is performed with the sandwich. In addition, in order to fix to an upper and lower chuck | zipper, a liner and the edge part of a packaging material are partly peeled off as needed. In this way, the peeling property of the peeling means in the two regions defined by the cutting line or the cutting guide line is different, thereby regulating the liner peeling and / or assisting the regulation of the liner peeling. Is possible.

  As other embodiment of peeling force adjustment, as another embodiment in the case of continuously forming the coating region of the adhesive layer, the peeling restricting means is predetermined on the peeling treatment surface of the peeling treatment sheet A covering the adhesion layer 4. It is also effective to form a non-peeling pattern. For example, as shown in FIG. 8, a configuration is shown in which a plurality of slit-like (widthwise) non-coating regions S are arranged in a stripe shape. If there are several streaks like this, peeling will not be smooth in this section (when straddling the streaks), and it will vibrate and cause a peculiar discomfort (so-called “jitter”). .

Adjustment of the adhesive force of the adhesive layer for preventing slippage can be adjusted as follows.
The pressure-sensitive adhesive layer is preferably a pressure-sensitive adhesive layer having a greater adhesive force on the far side in the peeling direction than the near side. In order to stop the peeling operation, the difference in adhesive strength between the start of peeling and the stop portion is preferably 100 cN or more. At this time, 100 cN or less is preferable on the side having a low adhesive force, and 10 cN to 75 cN is particularly preferable. On the other hand, the side having higher adhesive strength is preferably 100 cN or more, particularly preferably 100 to 500 cN, and more preferably 120 to 300 cN. In addition, the measurement of adhesive force is performed similarly to the measurement of the above-mentioned peeling force.
In this way, instead of devising the peelability of the peeling means, the adhesive strength of a part of the pressure-sensitive adhesive is different from the others so that the release of the liner can be similarly controlled and / or the release of the liner. It is possible to assist regulation.

In order to change the adhesive force while satisfying the predetermined function as a slip-off adhesive, the adjustment of the peeling force can be performed by changing a part of the adhesive with another adhesive that has a higher adhesive force than other parts. It is effective to form. Specifically, it is easiest to change the amount of the tackifier component in the adhesive. For example, the part to be lightly peeled on the front side contains 40% of a hydrogenated petroleum resin-based tackifier, and the part to be heavier on the back side is a SEBS-based hot melt adhesive containing 63% of the tackifier. It can be adjusted by increasing the tackifier component of the desired one. The preferred blending amount of the tackifier component is such that the side to be lightened has a preferable adhesive force as a pressure-sensitive adhesive, and 16% by weight to 55% by weight or less for light peeling, while the side to be heavy is sufficiently heavy to peel off, Moreover, in order not to cause trouble such as uncomfortableness that is difficult to peel off from the adhesive residue or shorts, it is preferably 50% by weight or more and 75% by weight or less. In addition, when using it in combination with other temporary stop devices, the composition range can be selected more extensively.
Similarly, the peel force can be adjusted by changing the width of the adhesive layer, the coating basis weight, the coating pattern of the adhesive, and the like. A plurality of these methods can be used in combination.

  When changing the coating width of the adhesive layer, it is preferable to increase the coating width at a position where it is desired to be temporarily stopped to about 1.5 times the coating width on the front side in the peeling direction. (For example, the coating width on the front side is 30 mm and the coating width on the back side is 45 mm.) To obtain a preferable difference in adhesive strength, the ratio of the coating width is (coating width on the back side) / (front side) Is preferably 1.4 or more, more preferably 1.5 or more.

When changing the basis weight of the adhesive layer, it is preferable to raise the basis weight of the adhesive layer at a position where it is desired to be temporarily stopped to about 1.6 times with respect to the front side in the peeling direction. (For example, the coating basis weight on the front side is 35 g / m ² and the back side is 60 g / m ^2. ) To obtain a preferable difference in adhesive strength, it is desirable to increase the basis weight difference, but peeling In addition to the temporary stopping of the operation, from the viewpoint of preferable adhesive strength as a slip-off agent and prevention of adhesive residue, the preferable coating amount is 20 to 40 g / kg on the low basis weight side before the peeling direction. m ² is preferable, and the back side of the high basis weight is preferably 30 to 80 g / m ² . The basis weight difference is preferably (high basis weight side) / (low basis weight side) 1.4 to 2.0, more preferably 1.6 to 1.8.

  When changing the adhesive pattern, for example, as shown in FIG. 9, the coating pattern on the front side is a linear pattern 40 that is continuous in the longitudinal direction and the back side is a thin film pattern 41 (see FIG. 9 (a)). ), The front side can be a thin film pattern 42 and the back side can be a horizontal stripe pattern 43 (see FIG. 9B). In particular, in the case of a pattern described later, when changing from a thin film pattern to a wide horizontal stripe pattern, a peeling mode that causes a unique discomfort (so-called “jittering”) by causing the release force of the smooth liner to vibrate discontinuously with heavy peeling force. Therefore, the operation tends to stop psychologically. In this way, when a sign that can be perceived can be sent to the user, and when a configuration device such as the above-described embodiments is used together, the peel force design can be designed in the lower eye. In this case, 25 to 200 cN is preferable and 40 to 100 cN is more preferable due to a difference in peeling force (T-peeling force) when the liner is peeled from the peeling surface. At this time, the release force on the release treatment sheet A side is preferably 100 cN or less, particularly preferably 10 cN to 75 cN, and the release force on the release treatment sheet B side is preferably 50 to 300 cN, particularly preferably 60 to 200 cN.

  The present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the spirit of the present invention.

  In each of the above embodiments, the present invention is applied to an individual package in which an absorber is not disposed between sheets constituting the skin contact surface and the non-skin contact surface. The present invention can also be applied to an absorbent article in which an absorber is disposed between the two.

  Further, as in the above-described embodiment, the arrangement position of the restricting means can be set on the inner side of the packaging material (for example, the inner end (back side) of the packaging material such as a trifold is fixed). .

  Further, the position where the restricting means is disposed can be the release side (outside, opening side) of the packaging material.

  In each said embodiment, although the said regulation means was comprised in either the edge part of an absorbent article, or the area | region of the packaging material facing this edge part, you may equip these in both.

  Moreover, the form of the cutting guide line provided in the release treatment layer is, for example, a form of a thin cutting guide line in which the release treatment layer is deeply cut in the depth direction in addition to the perforation as in the fourth embodiment. You can also.

  Moreover, when providing a clearance gap between the peeling process parts of a peeling process sheet like the said 1st Embodiment, when fixing a peeling process sheet to a packaging sheet by interposing an adhesive tape, for example of a peeling process sheet It is preferable to arrange an adhesive tape in the gap.

  Moreover, in the form where the release treatment sheet is overlapped on the release treatment sheet, when the coating region of the adhesive layer is continuously applied, as shown in FIG. 10, in the peeling direction of the release treatment sheet B. The peeling can be temporarily stopped by positioning the starting end on the side of the starting end 3A of the packaging material 3 relative to the starting end in the peeling direction of the adhesive 6B for fixing the release treatment sheet B to the packaging material. In this case, the distance between the start ends is preferably 0 to 3 mm, and more preferably 0.5 to 2 mm. Although there is a gap between the release treatment sheet A and the pressure-sensitive adhesive layer 4 in FIG.

  Moreover, there is no restriction | limiting in the bending form of an absorbent article and a packaging material, A bifold and another form may be sufficient.

  The present invention is suitable for packaging absorbent articles such as sanitary napkins, incontinence pads, sweat pads, medical aids, etc., in addition to liners as in the above embodiments.

It is a perspective view showing typically a 1st embodiment of an individual package of an absorptive article of the present invention. It is a figure which shows typically the expansion | deployment state of the individual package of the absorbent article of 1st Embodiment, (a) is a top view, (b) is a side view. It is a figure which shows the state which has peeled off the packaging material in the individual package of 1st Embodiment. It is a figure (a figure corresponding to Drawing 2) showing typically a deployment state of a 3rd embodiment of an individual article of an absorptive article of the present invention, (a) is a top view and (b) is a side view. It is a figure (a figure corresponding to Drawing 2) showing typically a deployment state of a 4th embodiment of an individual package of an absorptive article of the present invention, (a) is a top view and (b) is a side view. It is the figure (FIG. 2 equivalent figure) which shows typically the expansion | deployment state of 5th Embodiment of the individual package of the absorbent article of this invention, (a) is a top view, (b) is a side view. It is a figure (a figure equivalent to Drawing 2) showing typically a deployment state of a 6th embodiment of an individual package of an absorptive article of the present invention, (a) is a top view and (b) is a side view. It is a principal part enlarged view which shows typically the relationship between the adhesion layer by other embodiment of this invention, and the peeling process layer of a peeling process sheet. (A) And (b) is a figure which shows typically the pattern of the adhesion layer by other embodiment of this invention. It is a figure (a figure corresponding to Drawing 2) showing typically a deployment state of other embodiments of an individual package of an absorptive article of the present invention, (a) is a top view and (b) is a side view.

Explanation of symbols

1 Individual package of absorbent article 2 Panty liner (absorbent article)
21 Skin contact surface 22 Non-skin contact surface 3 Packaging material 31 Packaging sheet 3A Start end portion 3B End portion 4, 4A, 4B, 4C Adhesive layer 6, 6A, 6B, 6A1, 6A2, 6B1, 6B2, 6C1, 6C2 Adhesion Agent (adhesive means)
7 Joining means 50 Cutting line 50 'Cutting guide line A, B Peeling treatment sheet R, R' Peeling direction

Claims (4)

An absorbent article having an adhesive layer for preventing slippage is bonded to a packaging material via the adhesive layer, and is folded together with the packaging material and packaged with the packaging material. There,
There is a regulation means for temporarily stopping the peeling operation when the absorbent article and the packaging material are peeled off after unpacking,
The packaging material is formed by joining a peeling means for the adhesive layer to an individual packaging material via a joining means,
The peeling means has a cutting line or a cutting guide line as the regulating means in a region facing the adhesive layer,
The joining means is arranged on both sides of the cutting line or the cutting guide line so as not to cross the cutting line,
The restricting means exists in the rear end portion of the absorbent article and / or the region of the packaging material facing the rear end portion in the peeling direction of the packaging material, and the restricting means includes the When the absorbent article and the packaging material are folded in three to form the individual package, the individual package of the absorbent article does not exist in the center area of the trifold. An absorbent article having an adhesive layer for preventing slippage is bonded to a packaging material via the adhesive layer, and is folded together with the packaging material and packaged with the packaging material. There,
A regulating means for temporarily stopping the peeling operation when the absorbent article and the packaging material are peeled off after unwrapping, the trailing end of the absorbent article in the peeling direction of the packaging material And / or in the region of the packaging material facing the rear end,
The packaging material is formed by joining a peeling means for the adhesive layer to an individual packaging material via a joining means,
The peeling means has a peeling treatment sheet not provided with a cutting line, and a rear end portion of the peeling direction of the packaging material in the peeling treatment sheet is the regulation means,
In the release treatment sheet, the regulating means has a larger peeling force from the adhesive layer than the front end portion in the peeling direction of the packaging material, and the difference in the peeling force between the regulating means and the front end side. Is an individual package of an absorbent article having a peeling force of 100 to 500 cN. The peeling means has a peeling treatment sheet A located on the front end side in the peeling direction of the packaging material, and a peeling treatment sheet B located on the rear end side, with the cutting line or the cutting guide line in between.
The individual package of the absorbent article according to claim 1, wherein the release treatment sheet B has a greater release force from the adhesive layer than the release treatment sheet A.   The individual package of the absorbent article according to claim 1 or 3, wherein the cutting line or the cutting guide line is provided so as to cross a longitudinal direction of the peeling means.

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